sdusers.org - dns.ninja

`sdusers.org`

DNSSEC	⚠️ Not signed
NS	`coco.ns.cloudflare.com` ⭐
		A	2606:4700:50::adf5:3a68^{🇺🇸 Cloudflare2606:4700:50::/44 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`coco.ns.cloudflare.com`
		A	2803:f800:50::6ca2:c068^{🇨🇷 Cloudflare2803:f800:50::/45 LACNIC generated route6 for CloudFlare Latin America S.R.L}
			PTR	`coco.ns.cloudflare.com`
		A	2a06:98c1:50::ac40:2068^{🇺🇸 Cloudflare2a06:98c1:50::/45}
			PTR	`coco.ns.cloudflare.com`
		A	108.162.192.104^{🇺🇸 Cloudflare108.162.192.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`coco.ns.cloudflare.com`
		A	172.64.32.104^{🇺🇸 Cloudflare172.64.32.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`coco.ns.cloudflare.com`
		A	173.245.58.104^{🇺🇸 Cloudflare173.245.58.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`coco.ns.cloudflare.com`
NS	`damien.ns.cloudflare.com`
		A	2606:4700:58::a29f:2ca8^{🇺🇸 Cloudflare2606:4700:50::/44 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`damien.ns.cloudflare.com`
		A	2803:f800:50::6ca2:c3a8^{🇨🇷 Cloudflare2803:f800:50::/45 LACNIC generated route6 for CloudFlare Latin America S.R.L}
			PTR	`damien.ns.cloudflare.com`
		A	2a06:98c1:50::ac40:23a8^{🇺🇸 Cloudflare2a06:98c1:50::/45}
			PTR	`damien.ns.cloudflare.com`
		A	108.162.195.168^{🇺🇸 Cloudflare108.162.195.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`damien.ns.cloudflare.com`
		A	162.159.44.168^{Cloudflare162.159.32.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`damien.ns.cloudflare.com`
		A	172.64.35.168^{🇺🇸 Cloudflare172.64.35.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`damien.ns.cloudflare.com`
MX	`us-smtp-inbound-1.mimecast.com` ⭐
		A	170.10.128.141^{🇺🇸 Mimecast-NA170.10.128.0/23 191 Spring St Lexington MA 02421 United States}
			PTR	`us-smtp-inbound-1.mimecast.com`
			PTR	`us-smtp-inbound-2.mimecast.com`
		A	170.10.128.221^{🇺🇸 Mimecast-NA170.10.128.0/23 191 Spring St Lexington MA 02421 United States}
			PTR	`us-smtp-inbound-1.mimecast.com`
			PTR	`us-smtp-inbound-2.mimecast.com`
		A	170.10.128.242^{🇺🇸 Mimecast-NA170.10.128.0/23 191 Spring St Lexington MA 02421 United States}
			PTR	`us-smtp-inbound-1.mimecast.com`
			PTR	`us-smtp-inbound-2.mimecast.com`
		A	170.10.132.141^{🇺🇸 Mimecast-NA170.10.132.0/23 191 Spring St Lexington MA 02421 United States}
			PTR	`us-smtp-inbound-1.mimecast.com`
			PTR	`us-smtp-inbound-2.mimecast.com`
		A	170.10.132.221^{🇺🇸 Mimecast-NA170.10.132.0/23 191 Spring St Lexington MA 02421 United States}
			PTR	`us-smtp-inbound-1.mimecast.com`
			PTR	`us-smtp-inbound-2.mimecast.com`
		A	170.10.132.242^{🇺🇸 Mimecast-NA170.10.132.0/23 191 Spring St Lexington MA 02421 United States}
			PTR	`us-smtp-inbound-1.mimecast.com`
			PTR	`us-smtp-inbound-2.mimecast.com`
MX	`us-smtp-inbound-2.mimecast.com` ⭐
		A	170.10.128.141^{🇺🇸 Mimecast-NA170.10.128.0/23 191 Spring St Lexington MA 02421 United States}
			PTR	`us-smtp-inbound-1.mimecast.com`
			PTR	`us-smtp-inbound-2.mimecast.com`
		A	170.10.128.221^{🇺🇸 Mimecast-NA170.10.128.0/23 191 Spring St Lexington MA 02421 United States}
			PTR	`us-smtp-inbound-1.mimecast.com`
			PTR	`us-smtp-inbound-2.mimecast.com`
		A	170.10.128.242^{🇺🇸 Mimecast-NA170.10.128.0/23 191 Spring St Lexington MA 02421 United States}
			PTR	`us-smtp-inbound-1.mimecast.com`
			PTR	`us-smtp-inbound-2.mimecast.com`
		A	170.10.132.141^{🇺🇸 Mimecast-NA170.10.132.0/23 191 Spring St Lexington MA 02421 United States}
			PTR	`us-smtp-inbound-1.mimecast.com`
			PTR	`us-smtp-inbound-2.mimecast.com`
		A	170.10.132.221^{🇺🇸 Mimecast-NA170.10.132.0/23 191 Spring St Lexington MA 02421 United States}
			PTR	`us-smtp-inbound-1.mimecast.com`
			PTR	`us-smtp-inbound-2.mimecast.com`
		A	170.10.132.242^{🇺🇸 Mimecast-NA170.10.132.0/23 191 Spring St Lexington MA 02421 United States}
			PTR	`us-smtp-inbound-1.mimecast.com`
			PTR	`us-smtp-inbound-2.mimecast.com`
TXT	`0ed1fe018a9e2108a82e9b4adaa05da4`
SOA	`coco.ns.cloudflare.com`dns@cloudflare.com serial=2407312281

`org`

	DNSSEC	🔒 Signed (DS record present)
	NS	`a0.org.afilias-nst.info` ⭐ ⚠️ Not in parent delegation
	NS	`a2.org.afilias-nst.info` ⚠️ Not in parent delegation
	NS	`b0.org.afilias-nst.org`
	NS	`b2.org.afilias-nst.org`
	NS	`c0.org.afilias-nst.info` ⚠️ Not in parent delegation
	NS	`d0.org.afilias-nst.org`
	SOA	`a0.org.afilias-nst.info`hostmaster@donuts.email serial=1784318217

Same first word

sdusers.org

sdusers.net

sdusers.com

Similar names

drseuss.de

usdress.com

drseuss.cn

drseuss.com

dsusers.com

drsuess.com

drseuss.net

sudress.com

dressus.com.br

dressus.com

DNS History

9 records (4 active, 5 former)

●NScoco.ns.cloudflare.com2026-04-09 → 2026-07-17 · 3 obs

○ 2017-10-27 09:20:16
● 2026-04-09 14:02:44
● 2026-07-17 20:33:10

●NSdamien.ns.cloudflare.com2026-04-09 → 2026-07-17 · 3 obs

○ 2017-10-27 09:20:16
● 2026-04-09 14:02:44
● 2026-07-17 20:33:10

○NSns1.dra.net2015-05-19 → 2017-10-27 · 4 obs

● 2015-05-19 22:34:40
● 2017-10-27 09:20:16
○ 2026-04-09 14:02:44
○ 2026-07-17 20:33:10

○NSns3.sirsidynix.com2015-05-19 → 2017-10-27 · 4 obs

● 2015-05-19 22:34:40
● 2017-10-27 09:20:16
○ 2026-04-09 14:02:44
○ 2026-07-17 20:33:10

○NSns4.sirsidynix.com2015-05-19 → 2017-10-27 · 4 obs

● 2015-05-19 22:34:40
● 2017-10-27 09:20:16
○ 2026-04-09 14:02:44
○ 2026-07-17 20:33:10

○MXmail.messaging.microsoft.com2015-05-19 → 2017-10-27 · 4 obs

● 2015-05-19 22:34:40
● 2017-10-27 09:20:16
○ 2026-04-09 14:02:44
○ 2026-07-17 20:33:10

●MXus-smtp-inbound-1.mimecast.com2026-04-09 → 2026-07-17 · 3 obs

○ 2017-10-27 09:20:16
● 2026-04-09 14:02:44
● 2026-07-17 20:33:10

●MXus-smtp-inbound-2.mimecast.com2026-04-09 → 2026-07-17 · 3 obs

○ 2017-10-27 09:20:16
● 2026-04-09 14:02:44
● 2026-07-17 20:33:10

○A192.150.149.1382015-05-19 → 2017-10-27 · 4 obs

● 2015-05-19 22:34:40
● 2017-10-27 09:20:16
○ 2026-04-09 14:02:44
○ 2026-07-17 20:33:10

🔍 DNS Trace

📋 Delegation Chain

Zone	Nameservers	Glue
org	b2.org.afilias-nst.org, d0.org.afilias-nst.org, b0.org.afilias-nst.org	-
sdusers.org	damien.ns.cloudflare.com, coco.ns.cloudflare.com	-

✅ Authoritative Response

Server:108.162.195.168

NS records: damien.ns.cloudflare.com, coco.ns.cloudflare.com

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for sdusers.org (unsigned zone)

⏱️ Timing

Total: 1141ms | Queries: -

📄 Records

Type	Count	Sample Data
NS	2	`coco.ns.cloudflare.com, damien.ns.cloudflare.com`
MX	2	`us-smtp-inbound-1.mimecast.com (pri: 10), us-smtp-inbound-2.mimecast.com (pri: 10)`
TXT	1	`0ed1fe018a9e2108a82e9b4adaa05da4`
SOA	1	`coco.ns.cloudflare.com dns.cloudflare.co`

Analysis

Name Servers

sdusers.org is delegated to two name servers: coco.ns.cloudflare.com and damien.ns.cloudflare.com.

sdusers.org shares its NS records with other domains, for example schoolrooms.org, schoolrooms.net, gamedom.info and two others.

There is at least partial name server overlap between sdusers.org and other domains — lojoev.com, 3b5b5.com, udpl.eu.org and two more among them.

The name servers ernest.ns.cloudflare.com, adi.ns.cloudflare.com and vin.ns.cloudflare.com are often found in combination with these name servers.

DNS names with 6 IP addresses:

coco.ns.cloudflare.com resolves to 108.162.192.104, 172.64.32.104, 173.245.58.104 and 3 other IP addresses.

damien.ns.cloudflare.com resolves to 108.162.195.168, 162.159.44.168, 172.64.35.168 and 3 other IP addresses.

Mail Servers

sdusers.org is served by two mail servers, us-smtp-inbound-1.mimecast.com and us-smtp-inbound-2.mimecast.com.

Among the domains sharing a mail server setup with sdusers.org are fyins.com, capitalallocators.com, lowvilleacademy.org and two others.

There is at least a partial MX overlap between sdusers.org and other domains, including digestiveaz.com, cdint.org, mtnviewnissan.com and two others.

DNS names with 6 IP addresses:

us-smtp-inbound-1.mimecast.com resolves to 170.10.128.141, 170.10.128.221, 170.10.128.242 and 3 other IP addresses.

us-smtp-inbound-2.mimecast.com resolves to 170.10.128.141, 170.10.128.221, 170.10.128.242 and 3 other IP addresses.

us-smtp-inbound-1.mimecast.com and us-smtp-inbound-2.mimecast.com are host names that each point to 170.10.128.141 IP addresses.

us-smtp-inbound-1.mimecast.com and us-smtp-inbound-2.mimecast.com are host names that each point to 170.10.128.221 IP addresses.

us-smtp-inbound-1.mimecast.com and us-smtp-inbound-2.mimecast.com are host names that each point to 170.10.128.242 IP addresses.

us-smtp-inbound-1.mimecast.com and us-smtp-inbound-2.mimecast.com are host names that each point to 170.10.132.141 IP addresses.

us-smtp-inbound-1.mimecast.com and us-smtp-inbound-2.mimecast.com are host names that each point to 170.10.132.221 IP addresses.

us-smtp-inbound-1.mimecast.com and us-smtp-inbound-2.mimecast.com are host names that each point to 170.10.132.242 IP addresses.